Seudónimo Seudónimo

16-06-2017
Mathematics

contestada

Solve.
8 - 2d = c
4c + 3d = 2

c = ???
d = ???

Respuesta :

steve77 steve77

16-06-2017

Substitute eqn 1 into eqn 2
4(8 - 2d) + 3d = 2
32 - 8d + 3d = 2
5d = 30
d = 6

Substitute d = 6 into eqn 1
8 - 2(6) = c
c = -4

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